[Site]: ImageModel 和 AudioModel 放在 ChatModel 里了

### Current State

**Description of the current state/issue**:

<img width="1280" alt="Image" src="https://github.com/user-attachments/assets/b6e03f67-e3f7-4843-a525-bb71e4832e19" />

**Link to the page**:
**Screenshots (if relevant)**:


### Desired State

**Description of the change you are proposing**:


### Would you like to fix this issue?

None